CA3118663A1 - Method of feeding wood chips to a prehydrolysis reactor - Google Patents
Method of feeding wood chips to a prehydrolysis reactor Download PDFInfo
- Publication number
- CA3118663A1 CA3118663A1 CA3118663A CA3118663A CA3118663A1 CA 3118663 A1 CA3118663 A1 CA 3118663A1 CA 3118663 A CA3118663 A CA 3118663A CA 3118663 A CA3118663 A CA 3118663A CA 3118663 A1 CA3118663 A1 CA 3118663A1
- Authority
- CA
- Canada
- Prior art keywords
- chip
- vessel
- pump
- reactor
- reactor vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
- D21C7/06—Feeding devices
Landscapes
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20185831A FI129118B (fi) | 2018-10-03 | 2018-10-03 | Menetelmä puuhakkeen syöttämiseksi esihydrolyysireaktoriin |
FI20185831 | 2018-10-03 | ||
PCT/FI2019/050706 WO2020070389A1 (en) | 2018-10-03 | 2019-10-02 | Method of feeding wood chips to a prehydrolysis reactor |
Publications (1)
Publication Number | Publication Date |
---|---|
CA3118663A1 true CA3118663A1 (en) | 2020-04-09 |
Family
ID=68290257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA3118663A Pending CA3118663A1 (en) | 2018-10-03 | 2019-10-02 | Method of feeding wood chips to a prehydrolysis reactor |
Country Status (9)
Country | Link |
---|---|
US (1) | US11993895B2 (fi) |
EP (1) | EP3861164A1 (fi) |
JP (1) | JP2022504216A (fi) |
CN (1) | CN112867824A (fi) |
BR (1) | BR112021005764A2 (fi) |
CA (1) | CA3118663A1 (fi) |
CL (1) | CL2021000835A1 (fi) |
FI (1) | FI129118B (fi) |
WO (1) | WO2020070389A1 (fi) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI103898B1 (fi) * | 1994-01-24 | 1999-10-15 | Sunds Defibrator Pori Oy | Menetelmä prehydrolysoidun sellun ja/tai sellumassan tuottamiseksi |
SE517099E (sv) | 1996-04-17 | 2004-07-13 | Kvaerner Pulping Tech | System innefattande två pumpar för matning av en sspension till ett tryckkärl |
US6605350B1 (en) | 1996-08-23 | 2003-08-12 | Weyerhaeuser Company | Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same |
US6336993B1 (en) * | 1996-10-25 | 2002-01-08 | Andritz-Ahlstrom Inc. | Metal removal from comminuted fibrous material during feeding |
US5753075A (en) * | 1996-10-25 | 1998-05-19 | Stromberg; C. Bertil | Method and system for feeding comminuted fibrous material |
CA2266987C (en) | 1998-04-21 | 2004-02-10 | C. Bertil Stromberg | Method and system for feeding comminuted fibrous material |
FI20010854A (fi) | 2000-05-11 | 2001-11-12 | Andritz Ahlstrom Inc | Menetelmä selluloosapitoisen materiaalin käsittelemiseksi |
US7556713B2 (en) * | 2004-06-22 | 2009-07-07 | Andritz, Inc. | Method and system for feeding cellulose chips to a high pressure continuous cooking system |
FI123102B (fi) | 2006-03-31 | 2012-11-15 | Laennen Tutkimus Western Res Inc Oy | Kemiallisen massan valkaisumenetelmä |
US8734610B2 (en) | 2007-05-23 | 2014-05-27 | Andritz Inc. | Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method |
RU2555655C2 (ru) | 2009-11-24 | 2015-07-10 | Андритц Инк. | Способ и система для варки тонкой щепы в варочном котле |
US9371612B2 (en) * | 2011-02-22 | 2016-06-21 | Andritz Inc. | Method and apparatus to produce pulp using pre-hydrolysis and Kraft cooking |
US8951388B2 (en) * | 2011-04-08 | 2015-02-10 | Pec-Tech Engineering And Construction Pte Ltd | Method and system for efficient production of dissolving pulp in a kraft mill producing paper grade pulp with a continuous type digester |
US9644317B2 (en) | 2014-11-26 | 2017-05-09 | International Paper Company | Continuous digester and feeding system |
-
2018
- 2018-10-03 FI FI20185831A patent/FI129118B/fi active IP Right Grant
-
2019
- 2019-10-02 BR BR112021005764-1A patent/BR112021005764A2/pt unknown
- 2019-10-02 US US17/282,451 patent/US11993895B2/en active Active
- 2019-10-02 EP EP19790252.1A patent/EP3861164A1/en active Pending
- 2019-10-02 CA CA3118663A patent/CA3118663A1/en active Pending
- 2019-10-02 WO PCT/FI2019/050706 patent/WO2020070389A1/en active Application Filing
- 2019-10-02 JP JP2021518525A patent/JP2022504216A/ja active Pending
- 2019-10-02 CN CN201980064669.8A patent/CN112867824A/zh active Pending
-
2021
- 2021-04-01 CL CL2021000835A patent/CL2021000835A1/es unknown
Also Published As
Publication number | Publication date |
---|---|
CN112867824A (zh) | 2021-05-28 |
US11993895B2 (en) | 2024-05-28 |
WO2020070389A1 (en) | 2020-04-09 |
BR112021005764A2 (pt) | 2021-06-22 |
FI129118B (fi) | 2021-07-30 |
FI20185831A1 (fi) | 2020-04-04 |
EP3861164A1 (en) | 2021-08-11 |
CL2021000835A1 (es) | 2021-09-03 |
US20220002944A1 (en) | 2022-01-06 |
JP2022504216A (ja) | 2022-01-13 |
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